Test Card F is a test card that was created by the BBC and used on television in the United Kingdom and in countries elsewhere in the world for more than four decades. […] The central image on the card shows eight-year-old Carole Hersee, playing noughts and crosses with a clown doll, Bubbles the Clown, surrounded by various greyscales and colour test signals needed to ensure a correct picture. It was first broadcast on 2 July 1967 (the day after the first colour pictures appeared to the public on television) on BBC2.